Imported downloaded sources not working #69

Brief summary

I downloaded a bunch of chapters in Kotasu and I made a backup to switch to futon. Them I installed and opened Futon and imported my backups, but when I try to read the downloaded chapters they don't work.

Steps to reproduce

In Kotasu:

1. Download any chapter from any source.
2. Verify the chapter is saved correctly and readable.
3. Create a backup and save it.

In Futon:

1. Install and open the app.
2. Import your backup from Kotasu.
3. Verify the downloads folder is the same as in Kotasu.
4. Try to read the same chapters you downloaded while offline.

Futon version

9.7

Android version

16

Device

No response

Acknowledgements

• This is not a duplicate of an existing issue. Please look through the list of open issues before creating a new one.
• This is not an issue with a specific manga source. Otherwise, you have to proceed from parsers repository.